Validating Composite Component Values

JavaServer Faces provides the following tags for validating values of input components. These tags can be used with the composite:valueHolder or the composite:editableValueHolder tag.

Table 14-2 Validator Tags

Tag Name	Description
`f:validateBean`	Delegates the validation of the local value to the Bean Validation API.
`f:validateRegex`	Uses the `pattern` attribute to validate the wrapping component. The entire pattern is matched against the `String` value of the component. If it matches, it is valid.
`f:validateRequired`	Enforces the presence of a value. Has the same effect as setting the `required` element of a composite component’s attribute to `true`.